EP3422819B1 - Dispositif d'affichage en couleur - Google Patents

Dispositif d'affichage en couleur Download PDF

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Publication number
EP3422819B1
EP3422819B1 EP17756827.6A EP17756827A EP3422819B1 EP 3422819 B1 EP3422819 B1 EP 3422819B1 EP 17756827 A EP17756827 A EP 17756827A EP 3422819 B1 EP3422819 B1 EP 3422819B1
Authority
EP
European Patent Office
Prior art keywords
light
emitting
display device
substrate
emitting devices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17756827.6A
Other languages
German (de)
English (en)
Other versions
EP3422819A4 (fr
EP3422819A1 (fr
Inventor
Seung Han HYUN
Hyun Joon Kim
Jae Seok Park
Kum Tae Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Lekin Semiconductor Co Ltd
Original Assignee
Suzhou Lekin Semiconductor Co Ltd
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Filing date
Publication date
Application filed by Suzhou Lekin Semiconductor Co Ltd filed Critical Suzhou Lekin Semiconductor Co Ltd
Publication of EP3422819A1 publication Critical patent/EP3422819A1/fr
Publication of EP3422819A4 publication Critical patent/EP3422819A4/fr
Application granted granted Critical
Publication of EP3422819B1 publication Critical patent/EP3422819B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008—Processes
    • H01L2933/0033—Processes relating to semiconductor body packages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/52—Encapsulations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Definitions

  • the present disclosure relates to a light-emitting module, a light-emitting module manufacturing method, a light-emitting cabinet, and a display device.
  • a light-emitting diode is a p-n junction diode having a characteristic in which electric energy is converted into light energy, may be produced by a compound semiconductor of Group III and Group V elements or the like on the periodic table, and may represent various colors by adjusting a composition ratio of a compound semiconductor.
  • a LED when a forward voltage is applied, electrons of an n layer are combined with holes of a p layer, and energy corresponding to band gap energy between a conduction band and a valence band may be generated, and this energy is mainly emitted in the form of heat or light, and when the energy is emitted in the form of light, the LED functions.
  • a nitride semiconductor has received a great interest in a development field of an optical device and a high-output electronic device due to high thermal stability and wide band gap energy thereof.
  • a blue LED, a green LED and an ultraviolet (UV) LED using the nitride semiconductor are commercialized and used widely.
  • the brightness problem of a light-emitting diode has significantly been improved, so that the LED is applied to various devices such as a back light unit of a liquid crystal display device, an electric signage, a display device, and home appliances, etc.
  • a general liquid crystal display device displays images or videos with light passing through a color filter by controlling the transmission ratio of light of a plurality of light-emitting units in which a LED is mounted and liquid crystal.
  • the general liquid crystal display device includes a back light unit including a light source module and an optical sheet, a TFT array substrate, and a liquid crystal display panel including a color filter substrate and a liquid crystal layer.
  • a general light source module includes a plurality of LED packages in which light-emitting chips are mounted on a lead frame substrate and a printed circuit board on which a plurality of LED packages are mounted, and further includes a driving substrate including a drive circuit for driving a light source module and a liquid crystal display panel.
  • the present disclosure is directed to providing a light-emitting module, a manufacturing method of the light-emitting module, a light-emitting cabinet and a display device capable of providing full color.
  • the present disclosure is directed to providing a light-emitting module, a manufacturing method of the light-emitting module, a light-emitting cabinet and a display device capable of implementing uniform color and uniform brightness.
  • the present disclosure is directed to providing a light-emitting module, a manufacturing method of the light-emitting module, a light-emitting cabinet and a display device capable of simplifying a configuration and implementing slimness and high brightness in a chip on board (COB) type.
  • COB chip on board
  • the present disclosure is directed to providing a light-emitting module, a manufacturing method of the light-emitting module, a light-emitting cabinet and a display device capable of driving with low power.
  • the present disclosure is directed to providing a light-emitting module, a manufacturing method of the light-emitting module, a light-emitting cabinet and a display device capable of improving productivity and yield.
  • the present disclosure is directed to providing a display device with excellent linearity of images and videos.
  • the present disclosure is directed to providing a display device capable of implementing a large-sized display device with high-resolution.
  • the present disclosure is directed to providing a display device with excellent color purity and color reproduction.
  • the present invention provides a display device in accordance with the appended claim 1.
  • the present disclosure may implement uniform color and uniform brightness by providing a light-emitting module providing full color, and may implement slimness and high brightness by simplifying a configuration of the light-emitting module in a chip on board (COB) type.
  • COB chip on board
  • the present disclosure may implement low power driving and improve productivity and yield by simplifying the configuration of the light-emitting module.
  • the present disclosure contains embodiments, some of which are embodiments of the present invention as defined by the appended claims whereas others are only illustrative embodiments not defining in themselves the present invention as claimed but useful for understanding the invention and for illustrating its context.
  • An illustrative embodiment not defining it itself the present invention as claimed but useful for understanding and illustrating it, may implement uniform color and uniform brightness by providing a light-emitting module providing full color.
  • An illustrative embodiment not defining it itself the present invention as claimed but useful for understanding and illustrating it, may simplify a configuration of a light-emitting module and implement slimness and high brightness in a chip on board (COB) type.
  • COB chip on board
  • An illustrative embodiment not defining it itself the present invention as claimed but useful for understanding and illustrating it, may implement low power driving by simplifying the configuration of the light-emitting module.
  • An illustrative embodiment not defining it itself the present invention as claimed but useful for understanding and illustrating it, may improve productivity and yield by simplifying the configuration of the light-emitting module.
  • a display device of an embodiment of the present invention may implement high resolution in a large-sized display device over 100 inches due to excellent linearity of images and videos.
  • a display device of an embodiment of the present invention may implement a display device with excellent color purity and color reproduction by implementation of images and videos by a light-emitting unit providing full color.
  • the term “on” or “under” of each element includes both meanings that two elements are in direct contact with each other (directly) and one or more other elements are interposed between the above two elements (indirectly). Also, when it is represented as “on or under”, it may include a meaning of a downward direction as well as an upper direction with reference to one element.
  • a semiconductor device may include various electronic devices such as a light-emitting device and a light receiving device, and the light-emitting device and the light receiving device both may include a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer.
  • a semiconductor device may be a light-emitting device.
  • a light-emitting device emits light by the recombination of electrons and holes, and wavelengths of the light are determined by unique energy band gaps of materials. Therefore, the emitted light may vary according to the composition of the materials.
  • FIG. 1 is a perspective view illustrating a light-emitting module of a first illustrative embodiment, not defining alone the present invention as claimed,
  • FIG. 2 is a cross-sectional view illustrating a light-emitting unit of the first illustrative embodiment
  • FIG. 3 is a cross-sectional view illustrating a light-emitting module taken along a line I-I' of FIG. 1
  • FIG. 4 is a plan view illustrating a light-emitting unit and a black matrix of the light-emitting module of the first illustrative embodiment.
  • a light-emitting module 10 of the first illustrative embodiment may implement a simplified structure, slimness, and high brightness that implement full color videos or images.
  • the light-emitting module 10 of the first illustrative embodiment may include a light-emitting unit 100 having a width of less than 500 ⁇ m.
  • the light emitting unit 100 has a width of less than 500 ⁇ m.
  • the light-emitting unit 100 is directly mounted on a substrate 120 in a chip on board (COB) type.
  • COB chip on board
  • a driving circuit (not shown) configured to drive the light-emitting unit 100 may be mounted at a lower surface of the substrate 120.
  • the light-emitting unit 100 includes first to third light-emitting devices 151, 152, and 153 and a molding part 170 covering the first to third light-emitting devices.
  • each of the first to third light-emitting devices 151, 152, and 153 has a width of 200 ⁇ m or less. That is, each of the first to third light-emitting devices 151, 152, and 153 may be a micro light-emitting device having a width of 200 ⁇ m or less, so that each of the first to third light-emitting devices 151, 152, and 153 provides the light-emitting unit 100 having a width of less than 500 ⁇ m.
  • the illustrative embodiment may provide a single cell light-emitting module 10 of 0.5 x 0.5 (mm) to implement a simplified structure, slimness, and high brightness that implement full color videos or images.
  • the first to third light-emitting devices 151, 152, and 153 may be disposed to be spaced apart a predetermined distance from each other.
  • the first to third light-emitting devices 151, 152, and 153 may be disposed in parallel with each other in one direction, but are not limited thereto.
  • the first to third light-emitting devices 151, 152, and 153 may be directly mounted on the substrate 120.
  • the first to third light-emitting devices 151, 152, and 153 are directly mounted on the substrate 120 in a COB type.
  • the first to third light-emitting devices 151, 152, and 153 are directly mounted on the substrate 120 in the COB type, so that a configuration may be simplified, and slimness and high brightness may be implemented.
  • the first to third light-emitting devices 151, 152, and 153 may be mounted on the substrate 120 by a surface mounter technology (SMT).
  • SMT is a method of mounting the first to third light-emitting devices 151, 152, and 153 on the substrate 120 by using solder paste 130.
  • the solder paste 130 may be a metal paste.
  • the solder paste 130 may include an alloy such as AuSn and NiSn, but is not limited thereto.
  • the first to third light-emitting devices 151, 152, and 153 may emit different colors. According to the display device of the present invention, the first light-emitting device 151 emits light of a red wavelength, the second light-emitting device 152 emits light of a green wavelength, and the third light-emitting device 153 emits light of a blue wavelength. As another example, not forming part of the present invention as defined by the claims, the first to third light-emitting devices 151, 152, and 153 may include an ultraviolet (UV) light-emitting layer and a fluorescent layer.
  • UV ultraviolet
  • the first to third light-emitting devices 151, 152, and 153 may include a sapphire substrate 51, a light-emitting layer 53, and first and second light-emitting device electrodes 57 and 58.
  • the first to third light-emitting devices 151, 152, and 153 may have a flip chip structure in which the first and second light-emitting device electrodes 57 and 58 are disposed at a lower portion of the substrate 120 and are directly mounted on the substrate 120.
  • light emitted from the first to third light-emitting devices 151, 152, and 153 may be mixed to implement full color. Heights of the first to third light-emitting devices 151, 152, and 153 may be equal to each other.
  • the first to third light-emitting devices 151, 152, and 153 may have the same height and the sapphire substrate 51 of the first to third light-emitting devices 151, 152, and 153 may be 100 ⁇ m or more.
  • the first illustrative embodiment may improve light mixing and implement volume light emission by the sapphire substrate 51 of 100 ⁇ m or more and the first to third light-emitting devices 151, 152, and 153 of the same height.
  • the first to third light-emitting devices 151, 152, and 153 may be disposed at distances of 50 ⁇ m or more.
  • the first to third light-emitting devices 151, 152, and 153 may be disposed at distances of 50 ⁇ m or more to improve damage caused by friction of the first to third light-emitting devices 151, 152, and 153 in a mounting process.
  • the first to third light-emitting devices 151, 152, and 153 may be disposed at distances of 50 ⁇ m or more to improve loss of light due to interference of each of light of the first to third light-emitting devices 151, 152, and 153 with each other.
  • the molding part 170 may be disposed on the substrate 120.
  • the molding part 170 may be disposed on upper portions and side surfaces of the first to third light-emitting devices 151, 152, and 153.
  • the molding part 170 may be in direct contact with the substrate 120 and the first to third light-emitting devices 151, 152, and 153.
  • a top view of the molding part 170 may be a square structure, but is not limited thereto.
  • a top view shape of the molding part 170 may correspond to a pixel structure of a display device.
  • the top view of the molding part 170 may be varied in various shapes such as a rectangle, a polygon, an ellipse, a circle, or the like.
  • the molding part 170 may include a black filler 171.
  • the black filler 171 may implement an entire light-emitting surface in black color when the light-emitting module 10 does not emit light, so that appearance quality may be improved.
  • a display surface of black color may be implemented at the time of stopping driving of the display device, so that appearance quality may be improved.
  • the molding part 170 may protect the first to third light-emitting devices 151, 152, and 153, and has a thickness capable of improving light loss from the first to third light-emitting devices 151, 152, and 153.
  • a height between an upper surface of the molding part 170 and upper surfaces of the first to third light-emitting devices 151, 152, and 153 may be lower than that of the sapphire substrate 51 of each of the first to third light-emitting devices 151, 152, and 153.
  • the height of the sapphire substrate 51 may be 100 ⁇ m, and the height between the upper surface of the molding part 170 and the upper surfaces of the first to third light-emitting devices 151, 152, and 153 may be 100 ⁇ m or less.
  • the height between the upper surface of the molding part 170 and the upper surfaces of the first to third light-emitting devices 151, 152, and 153 may be 50 ⁇ m or less.
  • the height of the molding part 170 on the first to third light-emitting devices 151, 152, and 153 is smaller than that of the sapphire substrate 51.
  • the height of the molding part 170 on the first to third light-emitting devices 151, 152, and 153 is less than 50% of that of the sapphire substrate 51 of each of the first to third light-emitting devices.
  • the height of the molding part 170 on the first to third light-emitting devices 151, 152, and 153 is lower than that of the sapphire substrate 51, straightness of light may be improved.
  • the height between the upper surface of the molding part 170 and the upper surfaces of the first to third light-emitting devices 151, 152, and 153 may be formed to be lower than that of the sapphire substrate 51 so that mixing and straightness of light may be improved.
  • the height of the sapphire substrate 51 of 100 ⁇ m may be a height for volume light emission from each of the first to third light-emitting devices 151, 152, and 153, but is not limited thereto.
  • the height of the sapphire substrate 51 may be 100 ⁇ m or less.
  • the molding part 170 may have a predetermined distance between side surfaces adjacent to the first to third light-emitting devices 151, 152, and 153.
  • the distance may be between the side surfaces of the molding part 170 closest to the first to third light-emitting devices 151, 152, and 153.
  • the distance may be 25 ⁇ m or more. The distance may prevent the first to third light-emitting devices 151, 152, and 153 from being damaged during a sawing process in which the unit light-emitting unit 100 is separated after the molding part 170 is formed.
  • a black matrix BM may include functions of preventing light leakage and improving appearance quality.
  • the black matrix BM may be an opaque organic material.
  • the black matrix BM may be a black resin.
  • the black matrix BM may include openings corresponding to the first to third light-emitting devices 151, 152, and 153. One opening may correspond to one pixel of a display device, and may accommodate one light-emitting unit 100.
  • the black matrix BM is disposed on the substrate 120 to surround the light-emitting unit 100.
  • a cross-sectional thickness of the black matrix BM may be the same as a cross-sectional thickness of the light-emitting unit 100.
  • the black matrix BM may be a matrix structure surrounding all outer side surfaces of the plurality of light-emitting units 100.
  • the black matrix BM blocks interference of light between the adjacent light-emitting units 100 and provides a screen of black color at the time of stopping driving of the display device, so that appearance quality may be improved.
  • the first to third light-emitting devices 151, 152, and 153 and the molding part 170, capable of being individually driven, may be directly mounted on the substrate 120, and the light-emitting module 10 of a simplified structure in which a black matrix BM of a matrix type surrounding each side surface of each light-emitting unit 100 is disposed on the substrate 120 may be provided. That is, in the first illustrative embodiment, the light-emitting module 10 capable of implementing videos and images by implementing full color may be provided, and slimness and high brightness may be implemented by simplifying a configuration of the light-emitting module 10.
  • an electrical connection configuration may be simplified by a structure of the light-emitting module 10 of the COB type, so that power consumption may be reduced.
  • FIGS. 5 to 9 are views illustrating a method for manufacturing a light-emitting module of the first illustrative embodiment.
  • a plurality of first to third light-emitting devices 151, 152, and 153 may be disposed on a first carrier film 101.
  • the plurality of first to third light-emitting devices 151, 152, and 153 may be disposed to be spaced apart a predetermined distance from each other.
  • the first to third light-emitting devices 151, 152, and 153 may emit different colors.
  • the first light-emitting device 151 emits light of a red wavelength
  • the second light-emitting device 152 emits light of a green wavelength
  • the third light-emitting device 153 emits flight of a blue wavelength.
  • the first to third light-emitting devices 151, 152, and 153 may include a UV light-emitting layer and a fluorescent layer.
  • the first to third light-emitting devices 151, 152, and 153 may be a flip chip in which electrodes are disposed on a lower surface in contact with the first carrier film 101, but are not limited thereto. Heights of the first to third light-emitting devices 151, 152, and 153 may be equal to each other. The first to third light-emitting devices 151, 152, and 153 may be disposed at distances of 50 ⁇ m or more.
  • the first carrier film 101 may include an adhesive layer at one surface thereof.
  • the first carrier film 101 may be silicone-based, but is not limited thereto.
  • a molding layer 170a may be formed on the first carrier film 101 and the plurality of first to third light-emitting devices 151, 152, and 153.
  • the molding layer 170a may include a light-transmitting resin material such as epoxy or silicone.
  • the molding layer 170a may be in direct contact with the first carrier film 101 and the first to third light-emitting devices 151, 152, and 153.
  • the molding layer 170a may include a black filler.
  • the black filler may implement an entire light-emitting surface in black color when the light-emitting module does not emit light, so that appearance quality may be improved. For example, the black filler may improve appearance quality of a light-emitting module used in a signage, an indoor and outdoor electronic display board, and a public display.
  • a unit light-emitting unit 100 may be formed by a cutting process.
  • the cutting process may form a molding part 170 by etching or physically removing a molding layer.
  • the light-emitting unit 100 may include an aligning to a second carrier film 103.
  • the light-emitting unit 100 may be separated from the first carrier film and may be aligned on the second carrier film 103.
  • the aligning may be disposing of the light-emitting unit 100, which is separated via the cutting process on the first carrier film, on the second carrier film 103 to implement in a block unit.
  • a black matrix BM may be formed on the second carrier film 103 to manufacture a light-emitting device black 100-1.
  • the black matrix BM may be formed to surround outer side surfaces of the first to third light-emitting devices 151, 152, and 153.
  • the black matrix BM may be formed by a screen printing process, a dispensing process, or an injection process, but is not limited thereto.
  • a light-emitting device block 100-1 including the first to third light-emitting devices 151, 152, and 153 may improve yield by improving processability in a subsequent process of manufacturing a light-emitting module, and since a plurality of light-emitting units 100 are aligned, defective alignment may be improved.
  • the light-emitting device block 100-1 may be directly mounted on the substrate 120 in a COB type.
  • the light-emitting device block 100-1 may be separated from the second carrier film and mounted on the substrate 120 by SMT.
  • the SMT may use solder paste.
  • the solder paste may be a metal paste.
  • the solder paste may include an alloy such as AuSn and NiSn, but is not limited thereto.
  • the light-emitting device block 100-1 may be manufactured by using the first and second carrier films 101 and 103, the light-emitting device block 100-1 may improve processability and yield by being directly mounted on the substrate 120 in the COB type, and defective alignment of the light-emitting unit 100 may be improved.
  • not only slimness and high brightness may be implemented by simplifying a configuration in the COB type, but also power consumption may be reduced by simplifying an electrical connection configuration.
  • FIGS. 10 to 14 are views illustrating a method for manufacturing a light-emitting module of a second illustrative embodiment, again not defining alone the present invention as claimed.
  • the method of manufacturing the light-emitting module of the second illustrative embodiment may adopt technical features of the method of manufacturing the light-emitting module of the first illustrative embodiment of FIGS. 5 and 6 .
  • a unit light-emitting unit 100 may be formed on a first carrier film 101 by a cutting process.
  • the cutting process may form a molding part 170 by etching or physically removing a molding layer.
  • the unit light-emitting unit 100 may be directly mounted on the substrate 120 in a COB type.
  • the light-emitting unit 100 may be separated from the first carrier film and mounted on the substrate 120 by SMT.
  • the SMT may use solder paste.
  • the solder paste may be a metal paste.
  • the solder paste may include an alloy such as AuSn and NiSn, but is not limited thereto.
  • a black matrix BM may be formed on the substrate 120 to manufacture a light-emitting device black 100-1.
  • the black matrix BM may be formed to surround outer side surfaces of the first to third light-emitting devices 151, 152, and 153.
  • the black matrix BM may be formed by a screen printing process, a dispensing process, or an injection process, but is not limited thereto.
  • the unit light-emitting unit 100 may be directly mounted on the substrate 120 in the COB type after the unit light-emitting unit 100 is manufactured on the first carrier film 101 to form a black matrix BM.
  • not only slimness and high brightness may be implemented by simplifying a configuration in the COB type, but also power consumption may be reduced by simplifying an electrical connection configuration.
  • FIGS. 15 to 18 are views illustrating a method for manufacturing an light-emitting module of a third illustrative embodiment, again not defining alone the present invention as claimed.
  • a plurality of first to third light-emitting devices 151, 152, and 153 may be directly mounted on a substrate 120 in a COB type.
  • the first to third light-emitting devices 151, 152, and 153 may be mounted on the substrate 120 by SMT.
  • the SMT may use solder paste.
  • the solder paste may be a metal paste.
  • the solder paste may include an alloy such as AuSn and NiSn, but is not limited thereto.
  • a molding layer 170a may be formed on the substrate 120 and the plurality of first to third light-emitting devices 151, 152, and 153.
  • the molding layer 170a may include a light-transmitting resin material such as epoxy or silicone.
  • the molding layer 170a may be in direct contact with the substrate 120 and the first to third light-emitting devices 151, 152, and 153.
  • the molding layer 170a may include a black filler.
  • the black filler may implement an entire light-emitting surface in black color when the light-emitting module does not emit light, so that appearance quality may be improved.
  • a unit light-emitting unit 100 may be formed on the substrate 120 by a cutting process.
  • the cutting process may form a molding part 170 by etching or physically removing a molding layer.
  • a black matrix BM may be formed on the substrate 120.
  • the black matrix BM may be formed to surround an outer side surface of the light-emitting unit 100.
  • the black matrix BM may be formed by a screen printing process, a dispensing process, or an injection process, but is not limited thereto.
  • the first to third light-emitting devices 151, 152, and 153 may be directly mounted on the substrate 120 in the COB type to form the molding part 170 and the black matrix BM, so that a manufacturing process may be simplified.
  • not only slimness and high brightness may be implemented by simplifying a configuration in the COB type, but also power consumption may be reduced by simplifying an electrical connection configuration.
  • FIGS. 19 to 21 are views illustrating a method for manufacturing a light-emitting module of a fourth illustrative embodiment, again not defining alone the present invention as claimed.
  • a plurality of first to third light-emitting devices 151, 152, and 153 may be directly mounted on a substrate 120 in a COB type.
  • the first to third light-emitting devices 151, 152, and 153 may be mounted on the substrate 120 by SMT.
  • the SMT may use solder paste.
  • the solder paste may be a metal paste.
  • the solder paste may include an alloy such as AuSn and NiSn, but is not limited thereto.
  • a black matrix BM may be formed on the substrate 120.
  • the black matrix BM may be spaced apart a predetermined distance from the plurality of first to third light-emitting devices 151, 152, and 153.
  • the black matrix BM may form a cavity 131 including each of the first to third light-emitting devices 151, 152, and 153.
  • the black matrix BM may form a partition wall in a matrix type to form the cavity 131.
  • the black matrix BM may be formed by a screen printing process, a dispensing process, or an injection process, but is not limited thereto.
  • a molding part 170 may be formed in the cavity formed by the black matrix BM.
  • the molding part 170 may be formed on the substrate 120 by one of transfer molding, dispensing molding, compression molding, and screen printing methods.
  • a molding layer 170a may be in direct contact with the black matrix BM, the substrate 120, and the first to third light-emitting devices 151, 152, and 153.
  • the molding layer 170a may include a black filler.
  • the black filler may implement an entire light-emitting surface in black color when the light-emitting module does not emit light, so that appearance quality may be improved.
  • the molding part 170 is formed after mounting the first to third light-emitting devices 151, 152, and 153 directly on the substrate 120 in the COB type and forming the black matrix BM to eliminate the cutting process of the method of manufacturing the light-emitting module of the third illustrative embodiment, so that a manufacturing process may be simplified.
  • not only slimness and high brightness may be implemented by simplifying a configuration in the COB type, but also power consumption may be reduced by simplifying an electrical connection configuration.
  • FIGS. 22 to 25 are views illustrating a method for manufacturing a light-emitting module of a fifth illustrative embodiment, again not defining alone the present invention as claimed.
  • a black matrix BM may be formed on a substrate 220.
  • the black matrix BM may be spaced apart from each other at a predetermined distance.
  • the black matrix BM may be formed by a screen printing process, a dispensing process, or an injection process, but is not limited thereto.
  • the black matrix BM may form a partition wall in a matrix type.
  • a cavity 231 may be formed by etching the substrate 220 using the black matrix BM as a mask. Although not shown in the drawing, a substrate pad (not shown) may be exposed on a bottom surface of the cavity 231.
  • a plurality of first to third light-emitting devices 151, 152, and 153 may be directly mounted on the substrate 220 on the bottom surface of the cavity 231 in a COB type.
  • the first to third light-emitting devices 151, 152, and 153 may be mounted on the substrate 220 by SMT.
  • the SMT may use solder paste.
  • the solder paste may be a metal paste.
  • the solder paste may include an alloy such as AuSn and NiSn, but is not limited thereto.
  • a molding part 170 may be formed in the cavity formed by the black matrix BM.
  • the molding part 170 may be formed on the substrate 220 by one of transfer molding, dispensing molding, compression molding, and screen printing methods.
  • the molding part 170 may be in direct contact with the black matrix BM, the substrate 220, and the first to third light-emitting devices 151, 152, and 153.
  • the molding part 170 may include a black filler.
  • the black filler may implement an entire light-emitting surface in black color when the light-emitting module does not emit light, so that appearance quality may be improved.
  • the black matrix BM may be formed on the substrate 220, the substrate 220 may be etched to form the cavity 231, then the first to third light-emitting devices 151, 152, and 153 may be mounted directly on the substrate 220 on the bottom surface of the cavity 231 in the COB type, and the molding part 170 may be formed, so that the cutting process of the method of manufacturing the light-emitting module of the third illustrative embodiment may be removed, thereby simplifying a manufacturing process.
  • not only slimness and high brightness may be implemented by simplifying a configuration in the COB type, but also power consumption may be reduced by simplifying an electrical connection configuration.
  • FIGS. 26 to 28 are plan views illustrating a light-emitting unit and a black matrix of sixth to eighth illustrative embodiments, not defining alone the present invention as claimed.
  • a light-emitting unit 200 of the sixth illustrative embodiment may employ technical features of the light-emitting unit 100 of the first illustrative embodiment of FIGS. 1 to 4 except for first to third light-emitting devices 251, 252, and 253.
  • the first to third light-emitting devices 251, 252, and 253 may be disposed in a direction orthogonal to the first to third light-emitting devices 151, 152, and 153 of the first illustrative embodiment.
  • a light-emitting unit 300 of the seventh illustrative third embodiment may employ technical features of the light-emitting unit 100 of the first illustrative embodiment of FIGS. 1 to 4 except for first to third light-emitting devices 351, 352, and 353.
  • the first to third light-emitting devices 351, 352, and 353 may have an overlap region overlapping in one direction, or may not have an overlap region.
  • the overlap region may be 1/3 or less of a width of each of the first to third light-emitting devices 351, 352, and 353.
  • the overlap region may be 1/4 or less of the width of each of the first to third light-emitting devices 351, 352, and 353.
  • the overlap region may be 10% or less of the width of each of the first to third light-emitting devices 351, 352, and 353.
  • the overlap region is smaller, light interference and light efficiency may be improved.
  • the first to third light-emitting devices 351, 352, and 353 do have an overlap region in one direction, light interference between the first to third light-emitting devices 351, 352, and 353 may be reduced, so that light efficiency may be improved.
  • the first light-emitting device 351 may be disposed adjacent to a first corner of the light-emitting unit 300 and the second light-emitting device 352 may be disposed adjacent to a second corner of the light-emitting unit 300.
  • the first and second corners may be disposed in parallel in one direction.
  • the third light-emitting device 353 may be disposed adjacent to a side portion of the light-emitting unit 300 connecting third and fourth corners symmetrical to the first and second corners.
  • a light-emitting unit 400 of the eighth illustrative embodiment may employ technical features of the light-emitting unit 100 of the first illustrative embodiment of FIGS. 1 to 4 except for first to third light-emitting devices 451, 452, and 453.
  • the first light-emitting device 451 may be a vertical type in which electrodes are disposed at upper and lower portions.
  • the first light-emitting device 451 may emit light having a red wavelength.
  • the first light-emitting device 451 may be a vertical type to improve red light extraction efficiency and reliability.
  • the first light-emitting device 451 may further include a wire 451W connecting a substrate to a light-emitting device electrode (not shown) exposed at an upper portion thereof.
  • a shape, arrangement, and type of the light-emitting devices are limitedly described, but are not limited thereto, the shape and arrangement structure of the light-emitting devices may be variously changed.
  • FIG. 29 is a perspective view illustrating a light-emitting cabinet of an illustrative embodiment, not defining alone the present invention as claimed,
  • FIG. 30 is a perspective view illustrating a lower portion of the light-emitting cabinet of said illustrative embodiment
  • FIG. 31 is a plan view illustrating lower portions of first and second light-emitting cabinets of an illustrative embodiment, still not defining alone the present invention as claimed
  • FIG. 32 is a diagram illustrating a lower portion of a corner of the light-emitting cabinet of an illustrative embodiment, again not defining alone the present invention as claimed
  • FIG. 33 is a view illustrating a state in which the first and second light-emitting cabinets of an illustrative embodiment, not defining alone the present invention as claimed, are combined
  • FIG. 34 is a perspective view illustrating a fastening structure of the first and second light-emitting cabinets in an illustrative embodiment, again not defining alone the present invention as claimed.
  • a light-emitting cabinet 1000 of the illustrative embodiment may include a plurality of light-emitting modules 10a and 10b.
  • a structure including two first and second light-emitting modules 10a and 10b is described in the illustrative embodiment, but is not limited thereto.
  • the light-emitting cabinet 1000 may be a display device of a minimum unit.
  • the light-emitting cabinet 1000 may include first and second light-emitting modules 10a and 10b and a support frame 1010 for supporting lower surfaces of the first and second light-emitting modules 10a and 10b.
  • upper surfaces of the first and second light-emitting modules 10a and 10b may be a display region in which a light-emitting unit is disposed, and the lower surfaces thereof may be a non-display region in which a driving circuit is mounted.
  • Each of the first and second light-emitting modules 10a and 10b may employ technical features of the light-emitting modules of FIGS. 1 to 28 .
  • the support frame 1010 may support the first and second light-emitting modules 10a and 10b and may include a function of heat dissipation.
  • the support frame 1010 may include a plurality of openings 1015.
  • the opening 1015 may reduce a weight of the support frame 1010, and not only prevent the first and second light-emitting modules 10a and 10b from being in contact with a driving circuit exposed to a lower surface, but also improve heat dissipation efficiency.
  • the support frame 1010 may include one surface 1011 of a flat structure, and the one surface 1011 may be in direct contact with the lower surfaces of the first and second light-emitting modules 10a and 10b.
  • the support frame 1010 may include four outer side surfaces 1013 and a plurality of protrusions 1018 and a plurality of accommodating grooves 1019 may be disposed on the four outer side surfaces 1013.
  • the support frame 1010 has the plurality of protrusions 1018 disposed on first outer side surfaces symmetrical to each other, and the plurality of accommodating grooves 1019 may be disposed on second outer side surfaces orthogonal to the first outer side surfaces and are symmetrical to each other.
  • the plurality of protrusions 1018 and accommodating grooves 1019 may have a function for primarily fixing adjacent support frames.
  • the support frame 1010 may include a plurality of fastening parts 1017 protruding along an edge.
  • the plurality of protrusions 1018 of the support frame 1010 of the first light-emitting cabinet 1000a may be inserted into the plurality of accommodating grooves 1019 of the support frame 1010 of the second light-emitting cabinet 1000b.
  • a depth of the accommodating groove 1019 and a protruding length of the protrusion 1018 may be changed such that side portions of the first and second light-emitting modules 10a and 10b may be in contact with each other without warpage.
  • the side portions of the first and second light-emitting modules 10a and 10b in contact with each other may be substrates included in the first and second light-emitting modules 10a and 10b, respectively.
  • side portions of the four edges of the light-emitting module 10 may protrude outward beyond side portions of the four edges of the support frame 1010.
  • a distance W between one side portion of the light-emitting module 10 and the corresponding side portion of the support frame 1010 may be 0.5 to 2.0 mm.
  • Side portions of the light-emitting module 10 protruding outward beyond side portions of the support frame 1010 may be in direct contact with side surfaces of the first and second light-emitting modules 10a and 10b when the first and second light-emitting cabinets 1000a and 1000b adjacent to each other are connected.
  • the first and second light-emitting cabinets 1000a and 1000b adjacent to each other may be disposed such that the protrusion 1018 and the accommodating groove 1019 face each other along an outer side surface thereof.
  • a length of the protrusion 1018 and a depth of the accommodating groove 1019 may be changed such that side portions of the first and second light-emitting modules 10a and 10b adjacent to each other may be in contact with each other without warpage.
  • the length of the protrusion 1018 may be 1.0 mm larger than the depth of the accommodating groove 1019.
  • the protrusion 1018 may be exposed by 1.0 mm.
  • the length of the protrusion 1018 and the depth of the accommodating groove 1019 of the illustrative embodiment may be changed depending on the distance W so that the side portions of the first and second light-emitting modules 10a and 10b adjacent to each other may be in contact with each other without warpage.
  • the light-emitting module 10 protruding outward beyond the support frame 1010 may seamlessly implement the adjacent first and second light-emitting modules 10a and 10b by a side surface contact of the adjacent first and second light-emitting modules 10a and 10b.
  • the illustrative embodiment may include first and second fastening parts 1017a and 1017b connecting the first and second light-emitting cabinets 1000a and 1000b, which are adjacent to each other.
  • the first and second fastening parts 1017a and 1017b may adopt technical features of the fastening part 1017 in FIG. 30 .
  • the first and second fastening parts 1017a and 1017b may face each other.
  • the first and second light-emitting cabinets 1000a and 1000b may be secondarily fixed by inserting a fastening member 1100 passing through a fastening hole of the first and second fastening parts 1017a and 1017b.
  • FIG. 35 is a perspective view illustrating a coupling portion of first and second light-emitting cabinets of another illustrative embodiment.
  • first and second light-emitting cabinets 1000a and 1000b of another example may include a slit groove 1014 and a protrusion (not shown) along an outer side surface thereof.
  • the slit groove 1014 and a protrusion (not shown) may implement stable fixing of the adjacent first and second light-emitting cabinets 1000a and 1000b by widening a contact area as compared with the plurality of accommodating grooves 1019 and the plurality of protrusions 1018 provided in the light-emitting cabinet 1000 of the illustrative embodiment of FIG. 30 .
  • the light-emitting cabinet 1000 shown in FIGS. 29 to 35 supports the plurality of light-emitting modules 10a and 10b, and a coupling structure for stable fixing between the adjacent first and second light-emitting cabinets 1000a and 1000b is limitedly described, but is not limited thereto, and the coupling structure may be variously changed.
  • the light-emitting cabinet 1000 of the illustrative embodiment may implement uniform color and uniform brightness by including the light-emitting module 10 capable of providing full color.
  • the light-emitting cabinet 1000 of the illustrative embodiment may simplify a configuration and implement slimness and high brightness by including the light-emitting module 10 of a COB type, and power consumption may be reduced by simplifying an electrical connection structure.
  • the light-emitting cabinet 1000 of the illustrative embodiment may improve productivity and yield by including the light-emitting module 10 of a COB type.
  • the light-emitting cabinet 1000 of the illustrative embodiment may include the light-emitting module 10 capable of providing full color, so that a display device having excellent linearity of images and videos may be provided.
  • the light-emitting cabinet 1000 of the illustrative embodiment may include the light-emitting module 10 capable of providing full color, so that videos or images with excellent color purity and color reproduction may be provided.
  • FIG. 36 is a perspective view illustrating a display device of an embodiment of the present invention.
  • a display device 2000 of the embodiment of the present invention includes a plurality of light-emitting cabinets 1000.
  • the display device 2000 of the embodiment of the present invention will be described as an example of a large display device of over 100 inches such as an electronic display board.
  • the plurality of light-emitting cabinets 1000 includes light-emitting modules 10a and 10b in which a full color light-emitting unit, in which a plurality of light-emitting devices are directly mounted on a driving substrate in a COB type, is disposed in an accommodating part of a black matrix.
  • the light-emitting modules 10a and 10b may employ technical features of FIGS. 1 to 28 , provided they fall within the scope of the appended claims.
  • the display device 2000 of the embodiment of the present invention may not only simplify a configuration of the display device but also simultaneously implement slimness by including the light-emitting module including the light-emitting unit, which can provide full color.
  • the display device 2000 of the embodiment of the present invention implements videos and images by including the light-emitting device providing full color, and thus has an advantage of excellent color purity and color reproduction.
  • the display device 2000 of the embodiment of the present invention may simplify a configuration and implement slimness and high brightness by including the light-emitting module of a COB type, and may reduce power consumption by simplifying a configuration of electrical connection.
  • the display device 2000 of the embodiment of the present invention may improve productivity and yield by including the light-emitting module of a COB type.
  • the display device 2000 of the embodiment of the present invention may provide a display device, which has excellent linearity of images and videos by including the light-emitting modules 10a and 10b capable of providing full color.
  • the display device 2000 of the embodiment of the present invention may provide images and videos, which are excellent in color purity and color reproduction by including the light-emitting modules 10a and 10b capable of providing full color.
  • the display device 2000 of the embodiment of the present invention implements videos and images by the light-emitting device having excellent linearity, and thus a clear large display device over 100 inches may be implemented.
  • the embodiment of the present invention may implement a large display device over 100 inches with high resolution at low cost.
  • the light-emitting device package of the present disclosure may display images and videos, but is not limited thereto, and may be applied to lighting units, back light units, indicating devices, lamps, street lamps, vehicle lighting devices, vehicle display devices, smart watches, and etc., although not limited thereto.
  • the light-emitting device package of the present disclosure may be used as an edge type back light unit or a direct type back light unit, when used as a light source of a lighting device, it may be used as a light apparatus or bulb type, and it may be used as a light source of a mobile device.
  • Semiconductor devices may have a laser diode in addition to the above-described light-emitting diode.
  • the laser diode may include a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer of the above-described structure.
  • the laser diode uses an electroluminescence phenomenon that light is emitted when a current is flowing after bonding of a p-type first conductive type semiconductor and an n-type second conductive type semiconductor, but it has differences in direction and phase of emitted light. That is, the laser diode may emit light having one specific wavelength (monochromatic beam) in the same phase and same direction by using a stimulated emission phenomenon and a reinforcing interference phenomenon, and thus may be used for optical communication or medical equipment and semiconductor process equipment due to such characteristics.
  • Examples of a light receiving device may include a photodetector, a kind of transducer, which converts an intensity of detected light to an electrical signal.
  • a photodetector may include a photocell (silicon, selenium), a photoconductive device (cadmium sulfide, cadmium selenide), a photodiode (PD) (for example, PD which has a peak wavelength in visible blind spectral region or true blind spectral region), a phototransistor, a photomultiplier, a phototube (vacuum, gas sealed), an infra-red (IR) detector, etc., but embodiments of this disclosure are not limited thereto.
  • a semiconductor device like a photodetector may be fabricated by using a direct band gap semiconductor, which has excellent light conversion efficiency.
  • photodetectors there are various structures of photodetectors, and the most general structures of photodetectors include a pin type photodetector using p-n junction, a Schottky type photodetector using Schottky junction, and a metal semiconductor metal (MSM) type photodetector.
  • MSM metal semiconductor metal
  • the photodiode may include a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer of the above-described structure, and configured with p-n junction or pin structure.
  • the photodiode is operated by applying a reverse bias or zero bias, and when light is incident on the photodiode, electrons and holes are generated and a current flows. In this case, the size of a current is almost proportional to the intensity of light incident on the photodiode.
  • a photocell or solar cell is a kind of photodiodes, and may convert light to a current.
  • the solar cell like the semiconductor devices, may include a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer of the above-described structure.
  • it may be used as a rectifier of an electronic circuit through rectifying characteristics of a general diode by using p-n junction, and may be applied to an oscillation circuit or the like by applying to a very high frequency circuit.
  • the above-described semiconductor devices are not only implemented by semiconductor, and may further include a metal material in some cases.
  • the semiconductor device like a light receiving device may be implemented with at least one of Ag, Al, Au, In, Ga, N, Zn, Se, P, and As, and may be implemented with a semiconductor material doped with a p-type or n-type dopant, or an intrinsic semiconductor material.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Led Device Packages (AREA)
  • Manufacturing & Machinery (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (9)

  1. Dispositif d'affichage (2000), comprenant :
    une pluralité de coffrets émetteurs de lumière (1000a, 1000b) comportant chacun une pluralité de modules émetteurs de lumière (10a, 10b) et comportant chacun un cadre support (1010) respectif pour supporter des surfaces inférieures de la pluralité de modules émetteurs de lumière (10a, 10b),
    chacun de la pluralité de modules émetteurs de lumière (10a, 10b) comportant un substrat (120, 220), une unité émettrice de lumière (100, 200, 300, 400) sur le substrat (120, 220) et une matrice noire (BM) placée sur le substrat pour entourer l'unité émettrice de lumière, et l'unité émettrice de lumière présentant une largeur inférieure à 500 µm,
    l'unité émettrice de lumière comportant :
    un premier dispositif émetteur de lumière (151, 251, 351, 451) monté directement sur le substrat et émettant une longueur d'onde rouge ;
    un deuxième dispositif émetteur de lumière (152, 252, 352, 452) monté directement sur le substrat et émettant une longueur d'onde verte ;
    un troisième dispositif émetteur de lumière (153, 253, 353, 453) monté directement sur le substrat et émettant une longueur d'onde bleue ; et
    une partie moulée (170) recouvrant les premier à troisième dispositifs émetteurs de lumière,
    chacun des premier à troisième dispositifs émetteurs de lumière présentant une largeur inférieure ou égale à 200 µm,
    l'unité émettrice de lumière et la matrice noire étant d'un type puce sur carte (COB), et
    une hauteur entre une surface supérieure de la partie moulée (170) et des surfaces supérieures des premier au troisième dispositifs émetteurs de lumière étant inférieure à 50 % de celle d'un substrat en saphir (51) de chacun des premier à troisième dispositifs émetteurs de lumière.
  2. Dispositif d'affichage selon la revendication 1, dans lequel :
    chaque cadre support comporte une surface plate au contact direct de la pluralité de modules émetteurs de lumière, une pluralité d'ouvertures (1015) pénétrant de la surface à l'autre, et des surfaces latérales extérieures (1013),
    les surfaces latérales extérieures étant dotées d'une pluralité de protubérances (1018) et d'une pluralité de rainures (1019).
  3. Dispositif d'affichage selon la revendication 1 ou la revendication 2, dans lequel quatre coins du substrat font saillie vers l'extérieur au-delà de quatre coins du cadre support, et une distance entre une partie extrémité des bords de la pluralité de modules émetteurs de lumière et une partie extrémité d'un bord du cadre support est comprise entre 0,5 et 2,0 mm.
  4. Dispositif d'affichage selon la revendication 2, comprenant en outre un circuit de pilotage placé sur une surface inférieure de la pluralité de modules émetteurs de lumière,
    la pluralité d'ouvertures étant placées au niveau de chacun de la pluralité de coffrets émetteurs de lumière, et la pluralité d'ouvertures faisant face au circuit de pilotage.
  5. Dispositif d'affichage selon l'une quelconque des revendications 1 à 4, dans lequel la pluralité de coffrets émetteurs de lumière comportent des premier et deuxième coffrets émetteurs de lumière adjacents l'un à l'autre,
    le premier coffret émetteur de lumière comportant une première partie de fixation (1017a) placée sur l'autre surface du cadre support et une protubérance placée le long d'une surface latérale extérieure de celui-ci, et le deuxième coffret émetteur de lumière comportant une deuxième partie de fixation (1017b) placée sur l'autre surface du cadre support et une rainure en fente placée le long d'une surface latérale extérieure de celui-ci, les première et deuxième parties de fixation étant pourvues de trous en regard les uns des autres, et comportant un élément de fixation (1100) traversant le trou, et
    la protubérance étant au contact de la rainure en fente.
  6. Dispositif d'affichage selon la revendication 2, dans lequel les premier au troisième dispositifs émetteurs de lumière sont placés à une distance d'au moins 50 µm.
  7. Dispositif d'affichage selon la revendication 2, dans lequel une distance entre les premier à troisième dispositifs émetteurs de lumière et une surface latérale de la partie moulée la plus proche des premier à troisième dispositifs émetteurs de lumière est d'au moins 25 µm.
  8. Dispositif d'affichage selon la revendication 1, dans lequel une épaisseur en coupe transversale de la matrice noire est identique à une épaisseur en coupe transversale de l'unité émettrice de lumière.
  9. Dispositif d'affichage selon la revendication 2, dans lequel la partie moulée comporte une charge noire (171) .
EP17756827.6A 2016-02-23 2017-02-23 Dispositif d'affichage en couleur Active EP3422819B1 (fr)

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KR1020160021556A KR102572819B1 (ko) 2016-02-23 2016-02-23 발광모듈 제조방법 및 표시장치
PCT/KR2017/002007 WO2017146489A1 (fr) 2016-02-23 2017-02-23 Procédé de fabrication d'un module électroluminescent et dispositif d'affichage

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EP3422819A1 EP3422819A1 (fr) 2019-01-02
EP3422819A4 EP3422819A4 (fr) 2019-09-04
EP3422819B1 true EP3422819B1 (fr) 2023-08-09

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EP (1) EP3422819B1 (fr)
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KR (1) KR102572819B1 (fr)
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WO (1) WO2017146489A1 (fr)

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CN111095179A (zh) * 2017-08-25 2020-05-01 深圳云英谷科技有限公司 集成的显示和感测装置
KR102617483B1 (ko) * 2018-03-16 2023-12-26 주식회사 루멘스 마이크로 led 디스플레이 패널
CN108336078A (zh) * 2018-03-01 2018-07-27 厦门市信达光电科技有限公司 一种led显示屏及矩阵型led模组
TWI676262B (zh) * 2018-09-28 2019-11-01 大陸商北京易萊特科技有限公司 超小間距覆晶集成顯示模組及利用其之顯示裝置
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US10705370B2 (en) 2020-07-07
EP3422819A1 (fr) 2019-01-02
KR102572819B1 (ko) 2023-08-30
CN108702827A (zh) 2018-10-23
US20190049760A1 (en) 2019-02-14
JP2019512718A (ja) 2019-05-16
KR20170099325A (ko) 2017-08-31

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